Problem 1

Rewrite: 128.44 x 105
As: 1.2844 x 10?

Procedure
Moving the decimal point two places to the left is the same as dividing by 100.

Compensate by multiplying by 100 (adding 2 to the exponent)

 

128.44 x 105 = 1.2844 x 105+2

Solution

128.44 x 105 = 1.2844 x 107

 

Slide 1 of  3